臺灣固緯 GFC-8131H數字頻率計數器的特點
． 提供頻率與周期量測
．在高頻與低頻，均具高解析度
．頻率范圍：0.01Hz ~ 1.3GHz
． 高感度：10mVrms
．1Hz 檔解析度：100nHz
．可調式觸發準位控制
． 顯示鎖定功能
臺灣固緯 GFC-8131H數字頻率計數器的技術參數：
| 顯示 | |
| 8 位數 with Hz, kHz, MHz, GHz, S, mS, μS, nS and overflow | |
| Gate Time | |
| Continuously vary from 10mS to 10S, or 1 period of input depending on whichever is greater | |
| 準確度 | |
| +(Resolution+Timebase error) | |
| 頻道 A | |
| 范圍 | DC 耦合 0.01Hz ~ 120MHz；AC 耦合 30Hz ~ 120MHz |
| 感度 | 10mVrms tical； 50mVrms max |
| 耦合 | AC or DC, switchable |
| 濾波器 | Low p, switchable in or out for channel A. -3dB point of nominally 100kHz |
| 阻 | 1MΩ//40pF |
| 衰減器 | x 20dB |
| 觸發準位調整 | -2.5 VDC to +2.5 VDC |
| 解析度 | The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHz input respectively, and for period measurement is 10nS for 1Hz and 0.1fS (f=10-15) for 100MHz input respectively. At least 7,6,5 dis are display for 1S, 100mS, 10mS gate time respectively |
| Period Range | 8nS to 100S at least 7 dis displayed for per second of gate time |
| 頻道 B | |
| 范圍 | 50MHz to 1.3GHz |
| 感度 | <40mVrms (10mVrms tical) |
| 耦合 | AC only |
| 時基 | |
| Aging Rate | 1 ppm, per Month |
| 溫度 | 5 ppm 23°C+5°C |
| 電源變化 | +0.005 ppm for+10% 變化 |
| 使用電源 | |
| AC 100V/120V/220V/240V &plun;10%, 50/60Hz | |
| 附件 | |
| 操作手冊 × 1, 電源線 × 1, 測試線 GTL-110× 2 | |
| 尺寸及重量 | |
| 230(寬) × 95(高) × 280(長) mm，約 2.2 公斤 |
